COVER INFORMATION Station: SHANGHAI (Code Sh ) Experiment: LO Peg Exp. Code: EG084A Schedule Version: 1.00 Processed by SCHED version: 11.30 Version 11.3 update 1. April 14, 2014 PI: Jose C. Guirado Address: Dpto. Astronomia, Univ. Valencia Dr. Moliner 50 E-46100 Burjassot Valencia, Spain Phone: +34 963543073 EMAIL: Jose.C.Guirado@uv.es Fax: +34 963543084 Phone during observation: +34 963543078, +34629509130 Observing mode: Phase-referencing at 6cm (1024 Mb/s) Notes: Dual Pol Schedule for SHANGHAI (Code Sh ) Page 2 LO Peg UP: D => Below limits; H => Below horizon mask; W => still slewing at end; blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Disk: GBytes recorded to this point. TPStart: Recording start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Disk TPStart Stop UT LST EL AZ HA UP ParA Dwell GBytes SYNC ---------------------------------------------------------------------------------------- --- Thu 23 Oct 2014 Day 296 --- Next scan frequencies: 4942.49 4942.49 4942.49 4942.49 4974.49 4974.49 4974.49 4974.49 5006.49 5006.49 5006.49 5006.49 5038.49 5038.49 5038.49 5038.49 Next BBC frequencies: 742.49 742.49 742.49 742.49 774.49 774.49 774.49 774.49 806.49 806.49 806.49 806.49 838.49 838.49 838.49 838.49 Next scan bandwidths: 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 13 00 00 3C345 23 12 16 14.4 -51.9 6.5 61.3 0 0 13 00 00 13 05 00 --- 23 17 17 13.5 -51.4 6.6 60.6 300 38 13 00 01 13 08 00 3C345 23 20 18 13.0 -51.1 6.6 60.2 178 38 13 08 00 13 13 00 --- 23 25 18 12.2 -50.6 6.7 59.5 300 77 13 08 01 13 19 34 J2125+2442 23 31 53 61.6 265.0 2.1 70.0 74 77 13 19 34 13 21 14 =2123+244 23 33 34 61.3 265.3 2.1 70.0 100 90 13 19 35 13 21 14 LOPEG 23 33 34 61.9 261.6 2.0 67.4 -8 90 No stop 13 25 44 --- 23 38 04 61.0 262.5 2.1 67.7 262 124 13 21 15 13 25 44 J2125+2442 23 38 04 60.3 266.0 2.2 70.2 -8 124 No stop 13 27 24 =2123+244 23 39 45 59.9 266.3 2.2 70.2 92 137 13 25 45 13 27 24 LOPEG 23 39 45 60.6 262.8 2.1 67.8 -7 137 No stop 13 31 54 --- 23 44 15 59.7 263.5 2.2 68.0 263 172 13 27 25 13 32 34 J2125+2442 23 44 56 58.8 267.0 2.3 70.4 33 172 13 32 34 13 34 14 =2123+244 23 46 36 58.5 267.3 2.3 70.4 100 185 13 32 35 13 34 14 LOPEG 23 46 36 59.2 263.9 2.2 68.1 -7 185 No stop 13 38 44 --- 23 51 07 58.2 264.7 2.3 68.3 263 219 13 34 15 13 38 44 J2125+2442 23 51 07 57.5 267.9 2.4 70.5 -7 219 No stop 13 40 24 =2123+244 23 52 47 57.1 268.2 2.4 70.5 93 232 13 38 45 13 40 24 LOPEG 23 52 47 57.9 264.9 2.4 68.3 -7 232 No stop 13 44 54 --- 23 57 18 56.9 265.7 2.4 68.5 263 267 13 40 25 13 44 54 J2125+2442 23 57 18 56.2 268.8 2.5 70.5 -7 267 No stop 13 46 34 =2123+244 23 58 58 55.8 269.0 2.5 70.5 93 279 13 44 55 13 46 34 LOPEG 23 58 58 56.5 265.9 2.5 68.5 -7 279 No stop 13 51 04 --- 00 03 29 55.6 266.6 2.5 68.7 263 314 13 46 35 13 51 44 J2125+2442 00 04 09 54.7 269.7 2.6 70.6 33 314 13 51 44 13 53 24 =2123+244 00 05 49 54.4 269.9 2.7 70.6 100 327 13 51 45 Schedule for SHANGHAI (Code Sh ) Page 3 LO Peg UP: D => Below limits; H => Below horizon mask; W => still slewing at end; blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Disk: GBytes recorded to this point. TPStart: Recording start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Disk TPStart Stop UT LST EL AZ HA UP ParA Dwell GBytes SYNC ---------------------------------------------------------------------------------------- --- Thu 23 Oct 2014 Day 296 --- 13 53 24 LOPEG 00 05 49 55.1 266.9 2.6 68.7 -7 327 No stop 13 57 54 --- 00 10 20 54.1 267.6 2.6 68.8 263 362 13 53 25 13 57 54 J2125+2442 00 10 20 53.4 270.5 2.7 70.6 -7 362 No stop 13 59 34 =2123+244 00 12 00 53.0 270.7 2.8 70.6 93 374 13 57 55 13 59 34 LOPEG 00 12 00 53.8 267.8 2.7 68.8 -7 374 No stop 14 04 04 --- 00 16 31 52.8 268.4 2.7 68.9 263 409 13 59 35 14 04 04 J2125+2442 00 16 31 52.1 271.3 2.8 70.5 -7 409 No stop 14 05 44 =2123+244 00 18 11 51.7 271.5 2.9 70.5 93 422 14 04 05 14 05 44 LOPEG 00 18 11 52.4 268.7 2.8 68.9 -7 422 No stop 14 10 14 --- 00 22 42 51.5 269.3 2.8 68.9 263 456 14 05 45 14 10 54 J2125+2442 00 23 22 50.6 272.1 3.0 70.5 33 456 14 10 54 14 12 34 =2123+244 00 25 02 50.2 272.3 3.0 70.4 100 469 14 10 55 14 12 34 LOPEG 00 25 02 51.0 269.6 2.9 68.9 -7 469 No stop 14 17 04 --- 00 29 33 50.0 270.2 3.0 68.9 263 504 14 12 35 14 17 04 J2125+2442 00 29 33 49.3 272.8 3.1 70.4 -7 504 No stop 14 18 44 =2123+244 00 31 13 48.9 273.0 3.1 70.3 93 517 14 17 05 14 18 44 LOPEG 00 31 13 49.6 270.4 3.0 68.9 -7 517 No stop 14 23 14 --- 00 35 44 48.7 270.9 3.1 68.9 263 551 14 18 45 14 23 14 J2125+2442 00 35 44 48.0 273.5 3.2 70.3 -7 551 No stop 14 24 54 =2123+244 00 37 24 47.6 273.7 3.2 70.2 93 564 14 23 15 14 24 54 LOPEG 00 37 24 48.3 271.2 3.1 68.9 -7 564 No stop 14 29 24 --- 00 41 55 47.4 271.7 3.2 68.9 263 599 14 24 55 14 30 04 J2125+2442 00 42 35 46.5 274.3 3.3 70.1 33 599 14 30 04 14 31 44 =2123+244 00 44 15 46.1 274.5 3.3 70.1 100 612 14 30 05 14 31 44 LOPEG 00 44 15 46.9 272.0 3.2 68.8 -6 612 No stop 14 36 14 --- 00 48 46 45.9 272.5 3.3 68.8 264 646 14 31 45 14 36 14 J2125+2442 00 48 46 45.2 275.0 3.4 70.0 -6 646 No stop 14 37 54 =2123+244 00 50 26 44.8 275.2 3.4 69.9 94 659 14 36 15 14 37 54 LOPEG 00 50 26 45.5 272.7 3.3 68.7 -6 659 No stop 14 42 24 --- 00 54 57 44.6 273.3 3.4 68.7 264 694 14 37 55 Schedule for SHANGHAI (Code Sh ) Page 4 LO Peg UP: D => Below limits; H => Below horizon mask; W => still slewing at end; blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Disk: GBytes recorded to this point. TPStart: Recording start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Disk TPStart Stop UT LST EL AZ HA UP ParA Dwell GBytes SYNC ---------------------------------------------------------------------------------------- --- Thu 23 Oct 2014 Day 296 --- 14 42 24 J2125+2442 00 54 57 43.9 275.7 3.5 69.8 -6 694 No stop 14 44 04 =2123+244 00 56 37 43.5 275.9 3.5 69.7 94 706 14 42 25 14 44 04 LOPEG 00 56 37 44.2 273.5 3.4 68.6 -6 706 No stop 14 48 34 --- 01 01 08 43.2 274.0 3.5 68.6 264 741 14 44 05 14 49 14 J2125+2442 01 01 48 42.4 276.4 3.6 69.6 34 741 14 49 14 14 50 54 =2123+244 01 03 28 42.0 276.6 3.6 69.5 100 754 14 49 15 14 50 54 LOPEG 01 03 28 42.7 274.3 3.5 68.5 -6 754 No stop 14 55 24 --- 01 07 59 41.8 274.8 3.6 68.4 264 788 14 50 55 14 55 24 J2125+2442 01 07 59 41.1 277.1 3.7 69.4 -6 788 No stop 14 57 04 =2123+244 01 09 39 40.7 277.3 3.7 69.3 94 801 14 55 25 14 57 04 LOPEG 01 09 39 41.4 275.0 3.6 68.4 -6 801 No stop 15 01 34 --- 01 14 10 40.5 275.5 3.7 68.3 264 836 14 57 05 15 01 34 J2125+2442 01 14 10 39.8 277.7 3.8 69.1 -6 836 No stop 15 03 14 =2123+244 01 15 50 39.4 277.9 3.8 69.1 94 849 15 01 35 15 03 14 LOPEG 01 15 50 40.1 275.7 3.7 68.2 -6 849 No stop 15 07 44 --- 01 20 21 39.1 276.2 3.8 68.1 264 883 15 03 15 15 08 24 J2125+2442 01 21 01 38.3 278.5 3.9 68.9 34 883 15 08 24 15 10 04 =2123+244 01 22 42 38.0 278.6 3.9 68.8 100 896 15 08 25 15 10 04 LOPEG 01 22 42 38.7 276.4 3.8 68.0 -6 896 No stop 15 14 34 --- 01 27 12 37.7 276.9 3.9 67.9 264 931 15 10 05 15 14 34 J2125+2442 01 27 12 37.0 279.1 4.0 68.6 -6 931 No stop 15 16 14 =2123+244 01 28 53 36.7 279.3 4.0 68.6 94 944 15 14 35 15 16 14 LOPEG 01 28 53 37.3 277.1 4.0 67.8 -6 944 No stop 15 20 44 --- 01 33 23 36.4 277.6 4.0 67.7 264 978 15 16 15 15 20 44 J2125+2442 01 33 23 35.7 279.7 4.1 68.4 -6 978 No stop 15 22 24 =2123+244 01 35 04 35.4 279.9 4.1 68.3 94 991 15 20 45 15 22 24 LOPEG 01 35 04 36.0 277.8 4.1 67.6 -6 991 No stop 15 26 54 --- 01 39 34 35.1 278.2 4.1 67.4 264 1026 15 22 25 15 27 34 J2125+2442 01 40 14 34.3 280.4 4.2 68.0 34 1026 15 27 34 15 29 14 =2123+244 01 41 55 33.9 280.6 4.3 68.0 100 1038 15 27 35 Schedule for SHANGHAI (Code Sh ) Page 5 LO Peg UP: D => Below limits; H => Below horizon mask; W => still slewing at end; blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Disk: GBytes recorded to this point. TPStart: Recording start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Disk TPStart Stop UT LST EL AZ HA UP ParA Dwell GBytes SYNC ---------------------------------------------------------------------------------------- --- Thu 23 Oct 2014 Day 296 --- 15 29 14 LOPEG 01 41 55 34.6 278.5 4.2 67.3 -6 1038 No stop 15 33 44 --- 01 46 25 33.6 279.0 4.2 67.2 264 1073 15 29 15 15 33 44 J2125+2442 01 46 25 33.0 281.1 4.3 67.7 -6 1073 No stop 15 35 24 =2123+244 01 48 06 32.6 281.2 4.4 67.7 94 1086 15 33 45 15 35 24 LOPEG 01 48 06 33.3 279.2 4.3 67.1 -6 1086 No stop 15 39 54 --- 01 52 36 32.3 279.6 4.3 66.9 264 1121 15 35 25 15 39 54 J2125+2442 01 52 36 31.7 281.7 4.4 67.4 -6 1121 No stop 15 41 34 =2123+244 01 54 17 31.3 281.9 4.5 67.3 94 1133 15 39 55 15 41 34 LOPEG 01 54 17 32.0 279.8 4.4 66.8 -6 1133 No stop 15 46 04 --- 01 58 48 31.0 280.3 4.5 66.6 264 1168 15 41 35 15 46 44 J2125+2442 01 59 28 30.2 282.4 4.6 67.1 34 1168 15 46 44 15 48 24 =2123+244 02 01 08 29.9 282.6 4.6 67.0 100 1181 15 46 45 15 48 24 LOPEG 02 01 08 30.5 280.5 4.5 66.5 -6 1181 No stop 15 52 54 --- 02 05 39 29.6 281.0 4.6 66.3 264 1215 15 48 25 15 52 54 J2125+2442 02 05 39 28.9 283.0 4.7 66.7 -6 1215 No stop 15 54 34 =2123+244 02 07 19 28.6 283.2 4.7 66.6 94 1228 15 52 55 15 54 34 LOPEG 02 07 19 29.2 281.2 4.6 66.2 -6 1228 No stop 15 59 04 --- 02 11 50 28.3 281.7 4.7 66.0 264 1263 15 54 35 15 59 04 J2125+2442 02 11 50 27.6 283.7 4.8 66.4 -6 1263 No stop 16 00 44 =2123+244 02 13 30 27.3 283.8 4.8 66.3 94 1276 15 59 05 16 00 44 LOPEG 02 13 30 27.9 281.9 4.7 65.9 -6 1276 No stop 16 05 14 --- 02 18 01 27.0 282.3 4.8 65.7 264 1310 16 00 45 16 05 54 J2125+2442 02 18 41 26.2 284.4 4.9 66.0 34 1310 16 05 54 16 07 34 =2123+244 02 20 21 25.9 284.6 4.9 65.9 100 1323 16 05 55 16 07 34 LOPEG 02 20 21 26.5 282.6 4.8 65.6 -6 1323 No stop 16 12 04 --- 02 24 52 25.5 283.1 4.9 65.4 264 1358 16 07 35 16 12 04 J2125+2442 02 24 52 24.9 285.0 5.0 65.6 -6 1358 No stop 16 13 44 =2123+244 02 26 32 24.6 285.2 5.0 65.5 94 1371 16 12 05 16 13 44 LOPEG 02 26 32 25.2 283.2 4.9 65.3 -6 1371 No stop 16 18 14 --- 02 31 03 24.3 283.7 5.0 65.0 264 1405 16 13 45 Schedule for SHANGHAI (Code Sh ) Page 6 LO Peg UP: D => Below limits; H => Below horizon mask; W => still slewing at end; blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Disk: GBytes recorded to this point. TPStart: Recording start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Disk TPStart Stop UT LST EL AZ HA UP ParA Dwell GBytes SYNC ---------------------------------------------------------------------------------------- --- Thu 23 Oct 2014 Day 296 --- 16 18 14 J2125+2442 02 31 03 23.7 285.7 5.1 65.2 -6 1405 No stop 16 19 54 =2123+244 02 32 43 23.3 285.8 5.1 65.1 94 1418 16 18 15 16 19 54 LOPEG 02 32 43 23.9 283.9 5.0 64.9 -6 1418 No stop 16 24 24 --- 02 37 14 23.0 284.4 5.1 64.7 264 1453 16 19 55 16 25 04 J2125+2442 02 37 54 22.3 286.4 5.2 64.8 34 1453 16 25 04 16 26 44 =2123+244 02 39 34 21.9 286.5 5.2 64.7 100 1465 16 25 05 16 26 44 LOPEG 02 39 34 22.5 284.6 5.1 64.5 -6 1465 No stop 16 31 14 --- 02 44 05 21.6 285.1 5.2 64.3 264 1500 16 26 45 16 31 14 J2125+2442 02 44 05 21.0 287.0 5.3 64.4 -6 1500 No stop 16 32 54 =2123+244 02 45 45 20.6 287.2 5.3 64.3 94 1513 16 31 15 16 32 54 LOPEG 02 45 45 21.2 285.3 5.2 64.2 -6 1513 No stop 16 37 24 --- 02 50 16 20.3 285.8 5.3 63.9 264 1547 16 32 55 16 37 24 J2125+2442 02 50 16 19.7 287.7 5.4 64.0 -6 1547 No stop 16 39 04 =2123+244 02 51 56 19.4 287.8 5.4 63.9 94 1560 16 37 25 16 39 04 LOPEG 02 51 56 19.9 285.9 5.3 63.8 -6 1560 No stop 16 43 34 --- 02 56 27 19.0 286.4 5.4 63.5 264 1595 16 39 05 16 44 14 J2125+2442 02 57 07 18.3 288.4 5.5 63.5 34 1595 16 44 14 16 45 54 =2123+244 02 58 47 18.0 288.6 5.5 63.4 100 1608 16 44 15 16 45 54 LOPEG 02 58 47 18.5 286.7 5.5 63.3 -6 1608 No stop 16 50 24 --- 03 03 18 17.6 287.2 5.5 63.1 264 1642 16 45 55 16 50 24 J2125+2442 03 03 18 17.1 289.1 5.6 63.0 -6 1642 No stop 16 52 04 =2123+244 03 04 58 16.7 289.2 5.6 62.9 94 1655 16 50 25 16 52 04 LOPEG 03 04 58 17.3 287.4 5.6 62.9 -6 1655 No stop 16 56 34 --- 03 09 29 16.3 287.9 5.6 62.6 264 1690 16 52 05 16 56 34 J2125+2442 03 09 29 15.8 289.7 5.7 62.6 -6 1690 No stop 16 58 14 =2123+244 03 11 09 15.5 289.9 5.8 62.5 94 1703 16 56 35 16 58 14 LOPEG 03 11 09 16.0 288.0 5.7 62.5 -6 1703 No stop 17 02 44 --- 03 15 40 15.1 288.5 5.7 62.2 264 1737 16 58 15 17 03 24 J2125+2442 03 16 20 14.5 290.5 5.8 62.1 34 1737 17 03 24 17 05 04 =2123+244 03 18 00 14.1 290.7 5.9 61.9 100 1750 17 03 25 Schedule for SHANGHAI (Code Sh ) Page 7 LO Peg UP: D => Below limits; H => Below horizon mask; W => still slewing at end; blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Disk: GBytes recorded to this point. TPStart: Recording start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Disk TPStart Stop UT LST EL AZ HA UP ParA Dwell GBytes SYNC ---------------------------------------------------------------------------------------- --- Thu 23 Oct 2014 Day 296 --- 17 05 04 LOPEG 03 18 00 14.6 288.8 5.8 62.0 -6 1750 No stop 17 09 34 --- 03 22 31 13.7 289.3 5.8 61.7 264 1785 17 05 05 17 09 34 J2125+2442 03 22 31 13.2 291.2 5.9 61.6 -6 1785 No stop 17 11 14 =2123+244 03 24 11 12.9 291.3 6.0 61.4 94 1797 17 09 35 17 11 14 LOPEG 03 24 11 13.4 289.5 5.9 61.6 -6 1797 No stop 17 15 44 --- 03 28 42 12.4 290.0 5.9 61.3 264 1832 17 11 15 17 15 44 J2125+2442 03 28 42 12.0 291.9 6.0 61.1 -6 1832 No stop 17 17 24 =2123+244 03 30 23 11.7 292.0 6.1 60.9 94 1845 17 15 45 17 17 24 LOPEG 03 30 23 12.1 290.2 6.0 61.1 -6 1845 No stop 17 21 54 --- 03 34 53 11.2 290.7 6.1 60.8 264 1879 17 17 25 17 29 54 3C454.3 03 42 55 23.4 275.4 4.8 62.6 453 1879 17 29 54 17 34 54 --- 03 47 55 22.4 276.0 4.9 62.5 300 1918 17 29 55 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. ======== Setup file: sess314CG.setini Matching groups in /Users/jcg/sched113/catalogs/freq.dat: sh6cm Update freq. range AnTao 22Mar08 Setup group: 6 Station: SHANGHAI Total bit rate: 1024 Format: MARK5B Bits per sample: 2 Sample rate: 32.000 Number of channels: 16 DBE type: Speedup factor: 1.00 Disk used to record data. 1st LO= 4200.00 4200.00 4200.00 4200.00 4200.00 4200.00 4200.00 4200.00 4200.00 4200.00 4200.00 4200.00 4200.00 4200.00 4200.00 4200.00 Net SB= L L U U L L U U L L U U L L U U IF SB = U U U U U U U U U U U U U U U U Pol. = RCP LCP RCP LCP RCP LCP RCP LCP RCP LCP RCP LCP RCP LCP RCP LCP BBC = 1 2 1 2 3 4 3 4 5 6 5 6 7 8 7 8 BBC SB= L L U U L L U U L L U U L L U U IF = C A C A C A C A C A C A C A C A The following frequency sets based on these setups were used. Frequency Set: 10 Setup file default. Used with PCAL = off LO sum= 4942.49 4942.49 4942.49 4942.49 4974.49 4974.49 4974.49 4974.49 5006.49 5006.49 5006.49 5006.49 5038.49 5038.49 5038.49 5038.49 BBC fr= 742.49 742.49 742.49 742.49 774.49 774.49 774.49 774.49 806.49 806.49 806.49 806.49 838.49 838.49 838.49 838.49 Bandwd= 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 Matching frequency sets: 10 Track assignments are: track1= 18, 20, 2, 4, 22, 24, 6, 8, 26, 28, 10, 12, 30, 32, 14, 16 barrel=roll_off POSITIONS OF SOURCES USED IN RECORDING SCANS Source Source position (RA/Dec) Error (B1950) (J2000) (Date) (mas) * LOPEG 21 28 45.392414 * 21 31 01.713247 21 31 42.978594 0.00 23 06 52.67312 * 23 20 07.37000 23 24 23.99824 0.00 From catalog imbedded in main SCHED input file. J1642+3948 16 41 17.606228 * 16 42 58.809965 16 43 27.460669 0.77 * 3C345 39 54 10.81496 * 39 48 36.99402 39 47 19.88559 0.52 1641+399 /Users/jcg/sched113/catalogs/sources.vlba J1642+39 GSFC 2011B astro solution 52621 Observations * J2125+2442 21 23 11.596100 * 21 25 26.170454 21 26 06.897008 1.77 2123+244 24 29 03.97589 * 24 42 03.57978 24 46 16.29229 3.62 /Users/jcg/sched113/catalogs/sources.vlba GSFC 2011B astro solution 8 Observations J2253+1608 22 51 29.519738 * 22 53 57.747937 22 54 42.933728 0.68 * 3C454.3 15 52 54.34810 * 16 08 53.56093 16 13 53.05639 0.72 2251+158 /Users/jcg/sched113/catalogs/sources.vlba J2253+16 GSFC 2011B astro solution 39747 Observations SOURCE SCAN SUMMARY FOR SOURCES LISTED ABOVE Scan hours are for recording scans only. Baseline hours are only counted for scans above horizon at both ends. Source Setup file Frequency sets Observing hours (duplicates not shown) Scan Baseline LOPEG sess314CG.setini 1 2 3 4 5 6 7 10 11 12 6.375 322.859 3C345 sess314CG.setini 1 2 3 4 5 6 7 10 11 12 0.167 11.000 J2125+2442 sess314CG.setini 1 2 3 4 5 6 7 10 11 12 2.361 104.741 3C454.3 sess314CG.setini 1 2 3 4 5 6 7 10 11 12 0.267 13.000 EFFECT OF SOLAR CORONA The solar corona can cause unstable phases for sources too close to the Sun. SCHED provides warnings at individual scans for distances less than 10 degrees. The distance from the Sun to each source in this schedule is: Source Sun distance (deg) LOPEG 117.2 3C345 64.9 J2125+2442 115.9 3C454.3 136.7 Barry Clark estimates from predictions by Ketan Desai of IPM scattering sizes that the Sun will cause amplitude reductions on the longest VLBA baselines at a solar distance of 60deg F^(-0.6) where F is in GHz. For common VLBI bands, this is: 327 MHz 117. deg 610 MHz 81. deg 1.6 GHz 45. deg 2.3 GHz 36. deg 5.0 GHz 23. deg 8.4 GHz 17. deg 15.0 GHz 12. deg 22.0 GHz 9. deg 43.0 GHz 6. deg